If you were given an insect and asked to analyze its nitrogenous waste, you would prepare to test for
A. urea.
B. ammonia.
C. uric acid.
D. urine.
Answer: C. uric acid.
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DNA polymerases used in PCR
A. must remain active at very cold temperatures. B. include Taq polymerases and Vent polymerase. C. use an RNA template to make complementary DNA. D. are labeled with fluorescent dyes.
Why is it so difficult to identify the beginnings of the hominin line? What will be an ideal response?
Euglenoids live in freshwater; a __________ rids
them of excess water. Fill in the blank(s) with the appropriate word(s).
Tay-Sachs disease is a(n) ____ disease that results in blindness, intellectual disability, and death due to ____
a. sex-linked; the absence of one of the sex chromosomes b. autosomal recessive; accumulation of lipids in brain cells c. X-linked; accumulation of acetyltransferases in brain cells d. autosomal; sickled red blood cells e. autosomal dominant; accumulation of mucus in the lungs